Pajrglno-peyice attachment tfob automobiles



A. W. SWANSON.

PARKING DEVICE ATTACHMENT FOR AUTOMOBILES.

APPLICATION FILED JULY 15. 19211.

1,387,626. Patented Aug. 16, 1921.

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airfinnw w. SWANSQN, or snar'rnm wasnrnoron.

To all whom it my concern:

Be it known that 1, ANDREW W. a citizen of the United States, and resident of Seattle, King count Washington, have invented certain new and useful Improvements in Parking-Device Attachments for utomobiles, of which the following is a specification. n

This invention relates to improvements in motor driven vehicles, and more particularly to means for assisting in parking vehicles, such as automobiles and trucks, where park wliere the'vehicle with a curbing, or

Swanson,

is to be parked parallel walk;

Automobile operators, or drivers, often find that it is desirable, and in some cases necessar due to traffic regulations, to park their ve icles parallel with curbings, or walks, but, where parking space is limited and vehicles are placed close together it is difiicult to properly position a vehicle without considerable trouble. It isgzherefore' the object of this invention to provide means whereby a vehicle can be moved laterally, with respect to its usual direction of travel; and in this way make parallel parking in close quarters or in limited space easy.

It is also an object provide parking mechanism of the above character that can be associated with or installed on a vehicle, without alteration in the construction of the latter, and which is easily operated and controlled .byone at the drivers position in the vehicle.

In accomplishin these and other objects of the invention, have provided the improved details of construction, the preferred form'sof which are illustrated in"the' accompanying,fdra.wings wherein F igure'l is a longitudinal, sectional view of an automobile "equipped with parking mechanism constructed and mounted accordto the present invention. ig. 2 is an under same. F.

Fig. 3 is a rear view of one of the vehicle wheels, a part'of the axle housing, and a hoisting jack. c

Fig. 4 is an enlarged, detail view, partly in section, of one of the hoisting jacks and rollers. r j

Figs. 5, 6 and 7 are detail views of the control valve in different position.

Referring more in detail to the. several of the drawings, wherein like refer ranxnvennvrcn arracnmnmr Specification of Letters Patent. Application filed July 15,

, cause the vehicle wheels to of the invention to" ating the pistons,

side plan view of the FOR AUTOMOBILES.

Patented 1920. Serial 30. 396,396.

. ence numerals parts-1 designates the frame portionof a motor vehicle, which'may be of the usual type of construction, having rear wheels 2 mounted atthe outer ends of an axle hens. in 3 which incloses the usual driving axle 4.

ounted fixedly on cent the wheels,- or spaced apart a suitable distance, are vertically extending, cylinders 5, provided with extendible jackmg pistons 6, which are adapted to be actuated down wardlly from the cylinders, and which at thelr ower ends are equipped with rollers 7 that are fixed on axles 8 extended horizontally, and at right angles to the direction of theaxle 4.

The pistons 6 tracted position b 10, Fig. 4, located which are secured the upper end of sg that, when the t are normally held in rethe use of coiled springs :at their opposite ends to the cyllnderv and pistons, mechanism is not in use I ground, but may be extended downwardly, by the forcing of; a pressure medium into the cylinders at the upper ends, as is presently described, to

ground and the weight of the vehicle supported bythe rollers 7.

The fluid pressure medium used for actuagetank as shown at 12. A force pump-13 which may be'driven in any suitable manner by electricity, or by the motor of the en 'ne, is connected with the tank by a condu1t14 and with the cylinders by conduits '15, in such manner that, on starting the pump, the pressure fluid will Aug. 16,1921.

designate the same orlike the axle housing, adj a- 1 within the cylinders andbe lifted fromthe be forced into the may be confined ina storupper ends of the cylinder'sto actuate the pistons downwardly, to hoist the vehicle clear of the ground and support the same on the rollers 7. I A three way-control valve 16 is, placed in the main conduit 15 which is controlledby a rod 17 extended upwardly from the valve and rovided with an actuating lever or hand e 18 adjacent he drivers position.

This valve may e turned as shown in Fig. 5 to permit a' direct flow of the pressure fluid into the cylinders, and, when the pistons have been extended to functional osition, may be turned to position as in ig. 6 to hold the pressure in the cylinders during the parkin operation. When it is desired to lower t e vehicle after parking,

\ mount the valve may be turned to position asin Fig. 7 which permits the cylinders to drain back through the valve and a conduit 19 leading therefrom into the sup 1y tank.

I have also provided the con uit with a high pressure relief valve 20 which is placed between the 'pump and valve 16 and is 99nneoted by a conduit 21 with the supply tank.

This valve operates to permit a discharge.

into the tank, should the pump be left in operation after the pistons have reached their outer limitof travel. I

After the vehiclewheels have beenraised from the ground by the extending of the pistons, the vehicle is moved laterally by revolving the rollers 7. This is accomplished by means of driving mechanism consisting of a pair of friction rollers 25 which are d on the under sides of the running boards 26 of the vehicle. These rollers are swin 'n l sus ended b hanger members g1 g y P y 27 which are pivotally mounted in brackets been driven into position,

16 is moved toopen pos1t1on as in e dium into the pistons downwardly to .raise the vehlcle and these are equipped with bevel gear wheels 36, that operate in mesh with like gears 37 on the upper ends of telescoping 38,'wh1ch at their opposite, orilower ends, are connected through universal joints 39 with the axles 8 of the rollers 7. The upper ends of the shafts 38 are carried in brackets Q40 that are mounted on the extended axles, or driving shafts of the friction rollers. The fIIOtiOH-I'QHGIS, are moved to nonfunctional .positidnwhen the foot .lever is released, by means of a spring 45 that is fixed toxthe floor o the vehicle and to the lever as showlrin ig. 1. i

In'using the mobile, after the front end of the vehicle has the control valve the pump started to force the pressure mecylinders which actuates the support the same from the rollers 7 he valve is theif turned to closedpositidn,

as in Fig. 6, to hold the pistons extended and then moved forwardly to move the friction and may be with drive shafts I I i devlce, for parkmg an auto-- Fig. 5, and

the pump is turned 01f. The foot lever 29 is rollers 25 against the vehicle wheels, and operation of the latter will then drive the rollers 7 to move the car in a lateral direction.

When the car has been thus moved into proper position, the foot pedal is released and the spring 45 moves the friction rollers to non-functional position. The valve 16 is then opened, medium will drain from the cylinders back into the tank, and the springs 10 move the parts to raised position. 7

Having thus described my invention,

-what I'cla1m as new therein and desire to secure by'Letters 11mm is 1. The combination with an axle of a motor driven wheeled vehicle of the class described,.of downwardly extendible jacks mounted on said axle adjacent the drlving wheels thereof, rollers mounted at the lower ends of said jacks with their axes horizontal,

and at right angles to the said axlegmeans for actuating the jacks downwardly to raise and support the vehicle on said rollers, driv ing means operable by engaging the same.

the driving wheels of the vehicle when the latter are in non-supporting -position for revolving the rollers to move the vehicle in a lateral direction. 5 2. In a wheeled vehicle of the class described, in combination with a vehicle axle, 0

cylinders mounted onsaid axle adjacent its oppositeends; pistons mounted in said cylinders and extendible downwardly therefrom-,rollers mbunted at lower ends of said pistons, means for forcing a pressureimedium into said cylinders to actuate the pistons outwardly to raise and support the vehicle on said rollers, hangers pivotally fixed to the vehicle frame, friction rollers mounted on said hangers movable into engagement with the driving wheels of the vehicle, telescoping shaft sectiiins operatively connecting said friction wheels with said'roll'ers whereby operation of the former will actuate the rollers to move the vehicle in a lateral direction, lever mechanism operable to move I the hangers to. cause the friction rollers t engage or disengage the driving wheels, and means for cpntrolling the admlttance ofthe pressure medium into and from the cylinders. I Signed at Seattle, Washington, this 2d day of July, 1920. i 1

ANDREW W. SWANSON.

as in Fig. 7 and the pressure 

